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          树莓派系统基础
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        <h2 id="内存使用情况"><a href="#内存使用情况" class="headerlink" title="内存使用情况"></a>内存使用情况</h2><ul>
<li>查看剩余内存使用情况：<a target="_blank" rel="noopener" href="https://www.cnblogs.com/salesking/p/11109546.html">树莓派查看硬盘空间使用 - 13717607836 - 博客园 (cnblogs.com)</a>———一言以蔽之<code>df -h</code></li>
</ul>
<h2 id="系统版本"><a href="#系统版本" class="headerlink" title="系统版本"></a>系统版本</h2><ul>
<li><a target="_blank" rel="noopener" href="http://bbs.shumeipaiba.com/thread-11-1-1.html">linux版本、内核查询的常用方法 - 综合版块 - 树莓派论坛 - Powered by Discuz! (shumeipaiba.com)</a><ul>
<li>登录到服务器执行 <code>lsb_release -a</code> 即可列出所有版本信息</li>
</ul>
</li>
</ul>
<h2 id="系统的初始化"><a href="#系统的初始化" class="headerlink" title="系统的初始化"></a>系统的初始化</h2><ul>
<li>不推荐：奇巧淫技：<a target="_blank" rel="noopener" href="https://www.jianshu.com/p/e798bf6624aa">树莓派raspberry pi zero w上手笔记 - 简书 (jianshu.com)</a>———用串口通信实属离谱</li>
<li>如何<strong>联网</strong>——推荐：<a target="_blank" rel="noopener" href="https://www.cnblogs.com/syj888/p/11762702.html">树莓派zero 首次连接WiFi网络 - 在路上2019 - 博客园 (cnblogs.com)</a><br>  <strong>注意：在使用系统的时候依旧需要加入空文件ssh，否则容易出事，否则容易出事，否则不启用ssh</strong><ul>
<li>另外：在使用ssh的时候如果已经添加过公钥我的建议是直接删除这个公钥orz，不然容易出事，不然容易出事，不然容易出事……：<a target="_blank" rel="noopener" href="https://blog.csdn.net/wangguchao/article/details/85614914">(135条消息) 问题解决——SSH时出现WARNING: REMOTE HOST IDENTIFICATION HAS CHANGED!_口袋里的跳跳糖-CSDN博客</a></li>
</ul>
</li>
</ul>
<h2 id="系统的换源"><a href="#系统的换源" class="headerlink" title="系统的换源"></a>系统的换源</h2><ul>
<li><a target="_blank" rel="noopener" href="https://zhuanlan.zhihu.com/p/98079246">教你如何给树莓派更换软件源 - 知乎 (zhihu.com)</a>———一键更新，非常丝滑。<strong>不过已经落后了，我查出来我们的是11orz</strong><ul>
<li>注意换源前查看raspberrypi的debian版本，一定要对上：<a target="_blank" rel="noopener" href="https://blog.csdn.net/qq_35768839/article/details/104751061">(135条消息) 关于Debian发行版本（树莓派系统版本）<em>经济好没有钱的博客-CSDN博客</em>树莓派查看debian版本</a>命令为<code>lsb_release -a</code></li>
</ul>
</li>
<li>真正的教程害得看这个：<a target="_blank" rel="noopener" href="https://blog.csdn.net/qq_18275789/article/details/122997715">(135条消息) 树莓派 Raspberry Pi （bullseye）更换阿里云源方法_老鱼干的博客-CSDN博客</a></li>
<li>关于64位（注意要改一下那个啥：改一下<code>buster</code>to<code>bullseye</code>：<a target="_blank" rel="noopener" href="https://blog.csdn.net/baidu_26678247/article/details/108930421">(138条消息) 树莓派4B 64位（arm64）系统配置系统源<em>SWORLD-CSDN博客</em>树莓派arm64</a><br><strong>真实命令：</strong><br>编辑 /etc/apt/sources.list 文件，这里推荐就用系统自带的 nano 命令编辑，命令如下：<br><code>sudo nano /etc/apt/sources.list</code><br>进入编辑界面，删除原有的内容，粘贴如下内容：<blockquote>
<p>deb <a target="_blank" rel="noopener" href="http://mirrors.aliyun.com/raspbian/raspbian/">http://mirrors.aliyun.com/raspbian/raspbian/</a> bullseye  main non-free contrib rpi<br>deb-src <a target="_blank" rel="noopener" href="http://mirrors.aliyun.com/raspbian/raspbian/">http://mirrors.aliyun.com/raspbian/raspbian/</a> bullseye main non-free contrib</p>
</blockquote>
</li>
<li>如果出现<code>unsigned</code>报错的情况，可以通过这篇帖子更新GPG：<a target="_blank" rel="noopener" href="https://www.cnblogs.com/DragonStart/p/8146272.html">解决linux更新apt软件源时报出GPG错误 - asml - 博客园 (cnblogs.com)</a><h2 id="系统的关机"><a href="#系统的关机" class="headerlink" title="系统的关机"></a>系统的关机</h2></li>
<li><a target="_blank" rel="noopener" href="https://www.runoob.com/linux/linux-comm-halt.html">Linux halt命令 | 菜鸟教程 (runoob.com)</a></li>
<li><code>halt</code></li>
</ul>
<h2 id="设置系统wifi的方法"><a href="#设置系统wifi的方法" class="headerlink" title="设置系统wifi的方法"></a>设置系统wifi的方法</h2><ul>
<li><a target="_blank" rel="noopener" href="https://zhuanlan.zhihu.com/p/136463580">设置树莓派wifi的几种方式 - 知乎 (zhihu.com)</a>———单个wifi的多种方式</li>
<li>多个wifi:<figure class="highlight bash"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br><span class="line">6</span><br><span class="line">7</span><br><span class="line">8</span><br><span class="line">9</span><br><span class="line">10</span><br><span class="line">11</span><br><span class="line">12</span><br><span class="line">13</span><br><span class="line">14</span><br><span class="line">15</span><br></pre></td><td class="code"><pre><span class="line">ctrl_interface=DIR=/var/run/wpa_supplicant GROUP=netdev</span><br><span class="line">update_config=1</span><br><span class="line"></span><br><span class="line">network=&#123;</span><br><span class="line"> ssid=<span class="string">&quot;wo_shi_yige_wifi_ssid&quot;</span></span><br><span class="line"> scan_ssid=1</span><br><span class="line"> psk=<span class="string">&quot;wo_shi_mi_ma&quot;</span></span><br><span class="line"> priority=5</span><br><span class="line"> &#125;</span><br><span class="line"></span><br><span class="line"> network=&#123;</span><br><span class="line"> ssid=<span class="string">&quot;pi&quot;</span></span><br><span class="line"> psk=<span class="string">&quot;onlyforpi&quot;</span></span><br><span class="line"> priority=1</span><br><span class="line"> &#125;</span><br></pre></td></tr></table></figure>
</li>
</ul>
<h2 id="系统监视"><a href="#系统监视" class="headerlink" title="系统监视"></a>系统监视</h2><ul>
<li><a target="_blank" rel="noopener" href="https://blog.csdn.net/xingqingly/article/details/104328570">(136条消息) 树莓派监控CPU负载，温度，内存和网络的工具htop和speedometer和s-tui_嵌入式技术在路上-CSDN博客_htop显示温度</a><ul>
<li>我采用的是<code>speedometer</code>启动命令为：<code>speedometer -r eth0 -t eth0</code>和<code>speedometer -r wlan0 -t wlan0</code></li>
</ul>
</li>
</ul>
<h2 id="免密码登录"><a href="#免密码登录" class="headerlink" title="免密码登录"></a>免密码登录</h2><ul>
<li><a target="_blank" rel="noopener" href="https://blog.csdn.net/u014661152/article/details/109337818">(136条消息) vscode使用ssh密匙远程登录ssh，避免每次登录都输入密码_u014661152的博客-CSDN博客_vscode记住ssh远程密码</a><ul>
<li>主要内容就是俩密钥orz</li>
<li><a target="_blank" rel="noopener" href="https://blog.songjiahao.com/archives/262">VS Code使用ssh密钥连接linux – SAquariusの梦想屋 (songjiahao.com)</a></li>
<li><strong>备注：目前没成功</strong></li>
</ul>
</li>
</ul>
<h2 id="修改树莓派的主机名："><a href="#修改树莓派的主机名：" class="headerlink" title="修改树莓派的主机名："></a>修改树莓派的主机名：</h2><p><a target="_blank" rel="noopener" href="https://shumeipai.nxez.com/2019/02/27/how-to-change-the-hostname-of-your-raspberry-pi.html">如何修改树莓派的主机名 | 树莓派实验室 (nxez.com)</a></p>
<h2 id="树莓派的清除缓存"><a href="#树莓派的清除缓存" class="headerlink" title="树莓派的清除缓存"></a>树莓派的清除缓存</h2><ul>
<li><a target="_blank" rel="noopener" href="https://shumeipai.nxez.com/2017/12/18/how-to-modify-raspberry-pi-swap-partition.html">修改树莓派交换分区 SWAP 的正确姿势 | 树莓派实验室 (nxez.com)</a></li>
<li><a target="_blank" rel="noopener" href="https://www.cnblogs.com/pc-boke/articles/10213695.html">Linux释放cache和buffer内存空间 - 腾飞的鹰 - 博客园 (cnblogs.com)</a></li>
</ul>
<h2 id="树莓派写脚本"><a href="#树莓派写脚本" class="headerlink" title="树莓派写脚本"></a>树莓派写脚本</h2><ul>
<li><a target="_blank" rel="noopener" href="https://www.cnblogs.com/yinheyi/p/6648242.html">linux下的shell脚本（基本） - 殷大侠 - 博客园 (cnblogs.com)</a></li>
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